SmartCS: Currency Converter

So far, THIS HAS BEEN A DISASTER FOR MY SHOP!! I previously had a simple free currency switcher but opted for this to deal with geo location issues and tidy the appearance of currency switcher on the mobile view of my site. I have had multiple emails with support and currently under EUR option my site is now appearing in GBP. It's causing a lot of problems, costing sales and support have been fairly average in their responses!!!! Very poor